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At a factory, each worker is remunerated according to a salary grade G

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Math Expert
Joined: 02 Sep 2009
Posts: 55228
At a factory, each worker is remunerated according to a salary grade G  [#permalink]

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27 Sep 2018, 05:31
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Difficulty:

25% (medium)

Question Stats:

89% (01:26) correct 11% (00:00) wrong based on 11 sessions

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At a factory, each worker is remunerated according to a salary grade G that is at least 1 and at most 7. Each worker receives a monthly wage W, in dollars, determined by the formula W = 1140 + 45(G − 1). How many more dollars per month a worker with a salary grade-7 receives than a worker with a salary grade of 1?

(A) $135 (B)$270
(C) $405 (D)$540
(E) $600 _________________ Director Joined: 19 Oct 2013 Posts: 511 Location: Kuwait GPA: 3.2 WE: Engineering (Real Estate) At a factory, each worker is remunerated according to a salary grade G [#permalink] Show Tags 27 Sep 2018, 06:58 1,140 + 45 (7-1) = 1,140 + 270 = 1,410 that is for grade 7 For grade 1 = 1,140 + 45 (1-1) = 1,140 1,410 - 1,140 = 270 answer choice B A quicker way to notice this is that 1,140 is fixed for both so it doesn’t matter and that 45 will be zero for grade 1 So the difference will be 45 (7-1) = 270 Posted from my mobile device Board of Directors Status: QA & VA Forum Moderator Joined: 11 Jun 2011 Posts: 4470 Location: India GPA: 3.5 WE: Business Development (Commercial Banking) Re: At a factory, each worker is remunerated according to a salary grade G [#permalink] Show Tags 27 Sep 2018, 07:12 Bunuel wrote: At a factory, each worker is remunerated according to a salary grade G that is at least 1 and at most 7. Each worker receives a monthly wage W, in dollars, determined by the formula W = 1140 + 45(G − 1). How many more dollars per month a worker with a salary grade-7 receives than a worker with a salary grade of 1? (A)$135
(B) $270 (C)$405
(D) $540 (E)$600

Difference is $${1140 + 45(7 − 1)} - {1140 + 45(1 − 1)}$$

Or, Difference is $$(1140 + 45*6 - 1140 + 45*0)$$

Or, Difference is $$45*6= 270$$, Answer must be (B)
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Abhishek....

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Re: At a factory, each worker is remunerated according to a salary grade G   [#permalink] 27 Sep 2018, 07:12
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